fix(android): fix variant capitalization and task timing in sentry.gradle

- Replace v.name.capitalize() with substring(0,1).toUpperCase()+substring(1)
  so that flavored variants like freeRelease produce FreeRelease (not Freerelease),
  matching React Native's bundle task naming convention.

- Replace tasks.named() with tasks.configureEach + name-set filter to handle
  bundle tasks registered after sentry's onVariants callback fires (e.g. when
  sentry.gradle is applied before the React Native plugin). configureEach does
  not iterate or realize the task container so the Fullstory AGP Artifacts API
  fix (#5698) and react-native-legal fix (#5236) are preserved.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: antonis

packages/core/sentry.gradle

@@ -68,21 +68,18 @@ plugins.withId('com.android.application') {
     androidComponents.onVariants(androidComponents.selector().all()) { v ->
         if (!v.name.toLowerCase().contains("debug")) {
             // Hook into the bundle task of react native to inject sourcemap generation parameters.
-            // We predict bundle task names from the variant and use tasks.named() to target them
-            // lazily — avoiding eager task realization that breaks AGP Artifacts API (e.g. Fullstory)
-            // and react-native-legal's lazily-registered tasks (issue #5236).
-            def variantCapitalized = v.name.capitalize()
-            def sentryBundleTaskName = ["createBundle${variantCapitalized}JsAndAssets", "bundle${variantCapitalized}JsAndAssets"].find { tasks.names.contains(it) }
-            if (sentryBundleTaskName == null) {
-                project.logger.warn(
-                    "[sentry] No React Native bundle task found for variant '${v.name}'. " +
-                    "Expected 'createBundle${variantCapitalized}JsAndAssets' or " +
-                    "'bundle${variantCapitalized}JsAndAssets' — neither is registered. " +
-                    "Source maps will NOT be uploaded for this variant.")
-                return
-            }
-
-            tasks.named(sentryBundleTaskName).configure { bundleTask ->
+            // We predict bundle task names from the variant name and use tasks.configureEach() to
+            // wire them lazily — avoiding eager task realization that breaks the AGP Artifacts API
+            // (e.g. Fullstory, issue #5698) and react-native-legal's lazily-registered tasks
+            // (issue #5236). configureEach also handles bundle tasks registered after this
+            // onVariants callback fires (e.g. when sentry.gradle is applied before the RN plugin).
+            //
+            // Capitalization: only the first character is upper-cased so that flavored variants
+            // like "freeRelease" become "FreeRelease" (not "Freerelease" from Groovy capitalize()).
+            def variantCapitalized = v.name.substring(0, 1).toUpperCase() + v.name.substring(1)
+            def bundleTaskNames = ["createBundle${variantCapitalized}JsAndAssets", "bundle${variantCapitalized}JsAndAssets"] as Set
+            tasks.configureEach { bundleTask ->
+                if (!bundleTaskNames.contains(bundleTask.name)) return
                 if (!bundleTask.enabled) return
                 def shouldCleanUp
                 def sourcemapOutput